Norway maple
Also known as
Plane maple, Plane-leaved maple, European maple, Common maple
Keep this plant’s care guide close at hand.
Get the appAbout Norway maple
Acer platanoides, commonly known as Norway maple, is a large deciduous tree native to Europe and western Asia, widely planted and now naturalized in North America. It typically reaches 15–25 m (50–80 ft) tall with a broad, rounded crown and dense foliage. Leaves are 5–7 lobed, glossy dark green, exuding a milky sap from broken petioles—a useful ID trait. In early spring, clusters of yellow-green flowers appear before or as leaves emerge, attracting pollinators and leading to paired samaras with widely spread wings. The species tolerates compacted soils, urban pollution, and road salt, making it a common street and park tree. Fall color is usually clear yellow. Roots are shallow and can compete with turf and lift pavement. Outside its native range, especially in parts of the northeastern United States and Great Lakes, it can self-seed aggressively and displace native understory vegetation, so responsible management is advised. Numerous cultivars exist for form and foliage color, including purple-leaved selections, though many municipalities discourage new plantings where invasiveness is a concern.
Taxonomy
Properties & Requirements
How to care for Norway maple
Water
Water newly planted Norway maples deeply once or twice weekly during the first two growing seasons, delivering 15–25 liters per session, depending on soil and weather. Soak the root zone slowly to 20–30 cm depth, then allow the top few centimeters to dry between waterings. Once established, irrigate only during extended drought: one deep soak every 2–3 weeks is usually sufficient. Avoid chronic sogginess; ensure the root flare is exposed and never pile mulch against the trunk.
Light
Full sun to partial shade is ideal. For best canopy density and fall color, provide at least 6 hours of direct sun. In hot, dry regions, light afternoon shade or irrigation helps prevent marginal scorch. Norway maple casts very dense shade, suppressing turf and many understory plants; plan groundcovers accordingly. It is tolerant of urban light conditions but may produce fewer flowers in deep shade. Avoid reflected heat and glare from south- or west-facing walls without supplemental water.
Nutrients
Norway maple is not a heavy feeder; in average garden soils it often needs no fertilizer. If growth is weak or soil tests show deficiencies, top-dress in early spring with a balanced, slow‑release tree fertilizer (e.g., 10‑10‑10) at label rates, or better, apply 5–7 cm of compost under the dripline. Maintain a 5–8 cm organic mulch ring to conserve moisture and build soil. Avoid high‑nitrogen lawn fertilizers under the canopy, which can encourage weak, sappy growth.
Temperature
Hardy in USDA Zones 3–7 (to about −34 °C/−30 °F), Acer platanoides tolerates winter cold, wind, and urban microclimates. Optimal growth occurs in cool to warm temperate conditions, roughly 10–27 °C (50–80 °F). In hotter summer climates, provide soil moisture and mulch to reduce heat and drought stress, which can cause leaf scorch. Young trees benefit from protection from late freezes after budbreak. Avoid planting in heat islands without irrigation, where prolonged high night temperatures can stress the tree.
